Christian Taedcke / Mbed 2 deprecated ObdDisplay

Small project to display some OBD values from the Toyota GT86/ Subaru BRZ/ Scion FRS on an OLED display.

Dependencies:   Adafruit_GFX MODSERIAL mbed-rtos mbed

EngineRpm.cpp@7:a19b63c0a0fa, 2014-05-11 (annotated)

Committer:
chrta
Date:
Sun May 11 09:05:37 2014 +0000
Revision:
7:a19b63c0a0fa
Parent:
6:506b703a8acf 
Changed Adafruit_GFX to my own fork.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chrta 5:0b229ba8ede5 1 #include "EngineRpm.h"
chrta 5:0b229ba8ede5 2
chrta 6:506b703a8acf 3 const char EngineRpm::REQUEST_DATA[8] = {0x02, 0x01, 0x0C, 0, 0, 0, 0, 0};
chrta 6:506b703a8acf 4
chrta 5:0b229ba8ede5 5 EngineRpm::EngineRpm()
chrta 5:0b229ba8ede5 6 : PidValue("Engine RPM", "rpm")
chrta 5:0b229ba8ede5 7 {
chrta 5:0b229ba8ede5 8 }
chrta 5:0b229ba8ede5 9
chrta 5:0b229ba8ede5 10 bool EngineRpm::decode(const uint8_t* data, uint16_t length)
chrta 5:0b229ba8ede5 11 {
chrta 5:0b229ba8ede5 12 if (length < 2)
chrta 5:0b229ba8ede5 13 {
chrta 5:0b229ba8ede5 14 return false;
chrta 5:0b229ba8ede5 15 }
chrta 5:0b229ba8ede5 16
chrta 5:0b229ba8ede5 17 if ((data[1] != 0x0C) || length != 4)
chrta 5:0b229ba8ede5 18 {
chrta 5:0b229ba8ede5 19 return false;
chrta 5:0b229ba8ede5 20 }
chrta 5:0b229ba8ede5 21
chrta 5:0b229ba8ede5 22 m_value = ((data[2] << 8) | data[3]) >> 2; //rpm
chrta 5:0b229ba8ede5 23 return true;
chrta 5:0b229ba8ede5 24 }